For the longest time I had image scrolling problems in PM using my mouse, a Logitech MX Revolution. Today I got fed up with the problem and removed the Logitech LCC program, putting SteerMouse in its place. WOW!! Scrolling is back to normal, I could assign all the keystroke shortcuts I need to the mouse buttons (customizable to individual applications, just as in LCC). If anyone using PM with OS X and this same mouse, and/or having similar issues, try SteerMouse or another mouse controlling software. Logitech's LCC has caused me to gain at least two gray hairs since last year...
